db_0129: Stateflow transition appearance
Transitions in Stateflow:
Do not cross each other, if possible.
Are not drawn one upon the other.
Do not cross any states, junctions, or text fields.
Allowed if transition is to an internal state.
Transition labels may be visually associated to the corresponding transition.
Correct: Transition crosses state boundary to connect to substate
Incorrect: Transitions cross each other and transition crosses through state